Downhaul for mines.



Patented Apr. 29, I902.

. c. L. E. SCHENK.

.DOWNHAUL FDR MINES.

(Application filed Feb. 10, 1902.)

(No Model.)

FIGS.

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Ncfoumm wAsumswn n c UNITED STATES P TENT OEEIcE.

CARL L. E. SOHENK, OF WALKERS MILLS, PENNSYLVANIA, ASSIGNOR OF ONE-HALFTO TATE, JONES (Y COMPANY, INCORPORATED, OF PITTS- BURG, PENNSYLVANIA, ACORPORATION OF PENNSYLVANIA.

DOWNHAUL FOR MINES.

SPECIFICATION forming part Of Letters Patent No. 699,023, dated April29, 1902. Application filed February 10, 1902. Serial No. 93,438. (Nomodel.)

To all whom it may concern:

Be it known thatl, CARL L. E. SCHENK, a citizen of the United States,residing at Walkers Mills, in the county of Allegheny and State ofPennsylvania, have invented or discovered certain new and usefulImprovements scribed and claimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of a portion of a downhaul-chain having myimprovement applied thereto. Fig. 2 is a top plan View of'the same.Figs. 3 and 4 are views similar to Figs. 1 and 2,illustrating amodification of the improvement;

In the practice of my invention the chain is constructed in. the usualor any suitable manner except as regardsthe links, to which theconnecting devices are attached. These links 1 and 2 are, as shown inFigs. 1 and 3,

formed with vertical extensions at or near one end of the links, suchextended portions forming bearings for the pivot-pins 3 of the dogs 4and 5. In the constructionshown in Figs. 1 and 2 these dogs have theirouter ends weighted, so as to throw the inner ends up-.

ward to engage the opposite sides of a flange projection 6 on thebottoms of the cars. By reference to Fig. 2 it will be seen that theinner end of the dog 5 is provided with lateral projections 7, which inthe movement of the chain along the storage portion of the track willpass under plates 8, preferably formed by flanges of angle-pieces 9,secured to the ties of the track inside of or between the rails..

These depressing-plates serve to hold the rear or inner end of the frontdog down, so that they may run freely from the kick-back of track ontothe storage-track. The front portions of'these depressing flanges orplates are curved upwardly, sothat the lateral projectionson the dogwillbecaused to pass under the plates and held in such position untilreleased by the passage of the projections from the ends of the plates.

In the practice of my invention the depressing flanges or plates 8 arearranged along the storage portion of the track, and as the cars rundown onto such track they will be checked by the ordinaryform oftrack-brake and remain in such position until the flange or projection 6on the cars is caught by the rear dog and the cars pushed forward alongthe storage portion of the track. As the car passes along the storageportion ofthe track the front dog 5will be released, so that its rearend will be lifted by the weight into position in frontofthe flange orprojection '6 on the car.

The construction shown in Figs. 3 and 4 is similar to that shown inFigs. 1 and 2, excepting that the rear end of the dog 5 is depressed bylateral extensions '7 on the front end of the dog riding upon plates orflanges 8, arranged between thetracks. This lateral ex tension at thefront end of the dog 5 forms a weight for lifting the rear end of suchdog into operative position when the extensions 7 pass off the plates orflanges 8.

It will be observed that the construction and arrangement of the dogsare such as not 'to'require any material change in any of the ends ofeach pair in operative position, a depressing-plate arranged parallelwith the line of movement of the chain, and a'lateral extension fromthefront dog ofeach pair adapted to engage and be shifted-by said plate,substantially as set forth.

Intestimony whereof I have hereunto set my hand.

CARL E. SOHENK.

Witnesses:

DARWIN S. WOLCOTT, F. E. GAITHER.

